Pressure frame for sliding windows



June 22 1926. 1,589,791

o. DANNEHL PRESSURE FRAME FOR SLIDING WIND'UWS Filed 0G11. 28J 1924 2 Sheets-Sheet 1 0. DANNEHL.

PRESSURE FRAME FOR `SLIDINGr WINDOWS 2 Sheets-Sheet 2 Filed Oct. 28. 1924 Patented .lune 22, 1926.

U lilT E resem STATES i?? @iiii OTTO EANNEIL, OF BERLIN-ZEHLENDOBE GERIVANY, ASSXGNOR T0 NAAMLGZE VEITNOOTSC-IA? MACHNERIEEN EN AEE'ARA'IEN FABREKEN, 0F UTRECHT,

NETHERLANDS.

PRESSURE FRAME FOR SLIDING WINDDVJ'S.

Application filed. Gotober 28, 1924, Serial No. 746,!24, and in Germany Eecember 1, 1?;23.

This invention relates to improvements in pressure iframes for sliding` windows of that tvie 1n which the oressureirameis grossed in tired positive manner against the window frame at the upper end", and in loose positive and resilient manner at the lower end, and wherein, by the operation o'i a singe handle, the said pressure trame may be pressed against or withdrawn from the window in such manner that the window may be freely moi-.red up, and down.

l.ll/Thilgst in the case of such pressure frames provision has already been made for the supporting member for the window to be witlidrawn automatically from the weather rail upon the liitino' of the. pressure frame, according to the invention the pressure :traine is provided with a.. device, which automatienlly releases the topmost position oi said frame. upon the closing` oi the window, so that the pressure iframe, due to its own weight and as a result of inclined guideways, slides against the window 'frame and thereby s the supporting member on to the her rail. ln order to facilitate' the lateral drop oi the pressure frame under its own weight, and to render the pressure against the window iii-unie more effective, the invention also provides ior a spring mounted on the upper locking' member above the window aperture, saidv spring strongly tendto force the pressure frame downwards.

.l-ie. invention is illustrated by way oly eX- anu'ile in the accompanying dra VTing, in which ront elevation of the improved :l ig. 3 is a detail section of the device 'for pressing;l the pressure .tra-me against the window frame upon downward movement.

Fin'. e is a section corresponding to Fig. 3, but showing' the pressure frame raised.

Figs. 5-7iare detail sections showing the x avions positions o'il the pressure iframe during); the operation of the handle,

lille'. 8 shows in section the position of the guide members and cooperating parts in the topmost position oi the window.

'lhe pressure 'frame l lies against the whole periphery o'lI the trame 2 of the window 3. The window is capable of being raised and lowered by means ot the hand grip Ll mounted on the upper port of the window lrame. rlllie pressure frame l posesses at the top two inelinedly `arranged uid-e inenlljxers (Figs. l, 2, 3 and 4l), which re 'furnished with lugs 6 as slideway for a leaf springl 7. These guide members 5 move in slots 8 2, andk Ll) in an secured above the wine, go

angle ba E), which is dow aperture upon the upper locking member l0. rlhis arrangement Causes the pressure iframe, upon a downward movement granted thereto under the elif et oi'. its own and with tbe assistance of the leai 7, to be firm-ly pressed against the j l"one, and upon an upward move nient ei'ioeted by hand to more away 'from window frame and release the same. i, the window frame ocn at any desired elevated position oi the wi also upon only part opening; or closing. li on accor-.nt of swelling oi the wood the distance between the pressure and window Jiremos has deer lreed, the pressure frame will move to a slight extent downwardly to the point oi Contoot. It, however, the distance has been increased on account oi a shrinkage of the wood, this will be auto-V suini to a corr spondingly greater extent until same presses inst the window rms,

by which the downward movement thereof is lin "ed i tight closure in the direction town-.rds the window frame is obtained in all cases, however, by the upper lined posi-tive guiding of the pressure ironie.

'i his Lrdu rtatien of the 'vertical movement o the pres .re iframe to the pz 'ticular position of 'be window lme is rendered possible in the case of this 'i'orm ot embodiment by the pressure ironie being` resiliently pressed against the window frame at the bottom, namely, also under the efl'eet oi its own weipght and with the assistance or the leaf spring 7. The release o'l' this lower mechanism is elliected by means ot the catch or grip ll on the lower part oi? vvthe pressure trame (Figs. l, 2 and 5mi). 'Vlie catch ll is 'formed as an elbow pieoe, and is pivotal around sn axle l2. which is mounted in two hinge-blocks 18, ol which, in the vertical see-- tions in Figs. 2 and 5-7, only the rear one is to be seen. The elbow piece ll, by means oi its short, fork-like end lil, hingedly en Compasses a sliding block 16 by mea-ns oi set screws lo, which block is horizontally bored, and capable on the rod 17 ot moving against a spring lh tending to torce salue towards the le ti', between the two members hearing the rod 1T ot the. loulile leent ineinlier i9, secured to thepressui'e traine. rlhe movement olf the elbow piece ll around, the pivot l2 allows the sliding block, and thereiore the pressure traine, to perform a oircular movement, the vertical eoinponeiits'ot which represent a vertical movement oi"y the pressure frame, and the horizontal compo? nents a horizontal movement. The movement is' their limited when the two pivot points l2 and l5 are located in the same vertical (Fig. el certain impulse is required in this oase loi' the elbow piece ll, in order to allow the torce directed vertically downwards h v the pressure tra-nie to exert a horizontal pressure upon the window traine.

This impulse may `lie automatically granted by means oi' the window moved upwardly by the hand catch (l. lFor this purpose a hooleshaped abutment 2() is provided on the lower part of' the window frame '2 (liigs, 2 and 5-7), which abut-nient in the last part of the upward movement, shortly before the complete closing of the window, and hetore the projection 2l (Figs. 2 and 5-8) thrusts upon the 'weather board 22, moves the elbow piece ll, by means of the elbow piece 2l rotatable around the axle 23, out of' its'staloile position, so that upon the further upward movement ot the window, under the pressure 01' the spring 1S, the nose 2l is able to rest upon the weather board 22, as illustrated .in F 6 and 7. Y f

The withdrawal of the projection 2l from the member 22 before the lowering oit the window can, for avoiding a strap, and in continuation of the idea of only requiring one hand for the manipulation of the window, also he ellected automatically. For this purpose, in the form of embodimentshown, two cranked metal plates 25 (Figs. l and 8) each having a slot 26 are mounted upon the lower part ot' the window trame, through which slots the angle pieces 2T ou the pressure traine l protrude downwardly. -When, prior to the openinof of the window, the pressure 'frame l is lifted from the window frame il, the angle pieces 27 carry the \viii dow traine to such extent with them that the projection 2l .leaves the meniher the projection is lient out from same.

The ope-ningof the window is effected by depressing the catch l1. The pressure traine In: the drawing the window traine is composed of one piece ont suitably lient sheet vmetal, and

is hoth lifted out ot' the position shown in litige. und T, as well as withdrawn lroiu the window iframe, as shown in Figs. and (S, namely, upon its whole periphery. The windowfis thus free, and able to slide down iii the guide grooves, for, as shown in S, upon the horizontal movement oi the pres sure trame illustrated in Fi` a .3 and 6 the window traine is likewise taken in this di rection. The pressure frame and pressure frame bar are shown in the drawing to he oit' wood;` they may, however,` also be made or other Iiiate'rial.V

lfllhat'l Claim is l. In combination, a window traine, a verv tically slidable window mounted in said nieuw traine, a pressure trame associated with the window, means at the upper eXtreiiiit-y of the pressure Iranie i'or guiding the lutter into engagement with the window incident to downward movement of the pressure 'iii-aine, means for loosely guiding the lower portion `oil the pressure frame, a pivoted lever assoeiated with the last mentioned guiding" Vmeans, acting, in conjunction with the last mentioned means to move the pressure iraine into engagement with the window.

8. An arrangement as claimed in claini l characterized by the provision ol spring means normallyT tending to press the pressure traine downwardly, the tii'sf mentioned guide means including inclined members, und means coaeting` therewith tending to thrust the pressure 'flame laterally toward the window incident to downward movement oli the pressure frame.

Ll. in arrangement as elfiiuuid in claim i characief'ized by the prov Lion ot inea-iis actuated my the windowincidentto the upward movement or the latter to displace sai d lever and cause the partial elevation olf the pressure raine'rwherehy the latter moved ouiA 0i window engaging position.

.ln testimony whereof l have utilized my signature.

OTTO DlillNlll-lli. 

